In April, Grooveshark was ousted from the Android Market for violating Google’s terms and condition. Now Grooveshark is firing back with a letter addressed to the music industry and in particular, Google and Apple.

When Grooveshark, an Internet radio provider that allows users to listen to MP3s for free, tried to bring its service to the iPhone, it was rejected by Apple. So the company did what any snubbed publisher would do - it made the app available for jailbroken iPhones.